Solar panel



FIG. 1 is a perspective view of solar panel showing my present design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken line portion of the figure drawings is included to show portions of the article that forms no part of the claimed design. 

CLAIM The ornamental design for a solar panel, as shown and described. 